Fuel-supply device for internal-combustion engines.



H. M. REiCHENBACH.

FUEL SUPPLY DEViCE FOR INTERNAL COMBUST 0N ENGINES.

APPLICATlON FILED JAN. 27. [915. RENEWED JUL! 10. 1916.

I d 1,223,109. P at-011ml Apr. 17, 1917.

2 SHEETSSHEET I.

FVii'ucmus I I Susie-Hwy: a H EMA 574/ c v I (1H0 c134.

H. M. REICHENBACH. FUEL SUPPLY DEVICE FOR INTERNAL COMBUSTI IN ENGINES.

APPLICATION FILED IAN. 27. I9I5. RENEWED IULY I0. I9I6.

Patented Apr. I7, 1917,

2 SHEETSSHEET 2.

ML) I W HENRY M. REICHENIBACH, OF ROCHESTER, NEW YORK.

FUEL-SUPPLY DEVICE FOR INTERNAL-COMB lTION ENGINES.

Specification of Letters Patent.

Patented Apr. 17, 1917.

Application filed January 27, 1915, Serial No. 4,722. Renewed July 10, 1916. Serial No. 108,448.

To all who'm it may concern and carburetors for internal combustion engines or motors.

My invention relates to the provision of a fuel control means responding directly to engine suction through a main controlling or deflector plate arranged in the intake con duit through which passes what is ordinarily called the initial air supply in contradis'tinction to supply entering through some auxiliary opening.

My device also provides a comparatively simple and cheap instrument for permitting an enlargement of the fuel supply openings upon increase in the demandsof the motor, in contradistinction to what is known as a fixed adjustment carburetor or one in which the fuel-emitting orifice remains con- 'stant in size throughout the range of engine speeds. The enlargement of the fuel orifice, referred to above, is in direct (as distinguished from differential) proportion to the air passing through'the intake condu1t..

In the accompanying drawings forming a part of this application, and in which referencesymbols indicate corresponding parts in all the views:

Figure 1 is a. top plan view.

Fig. 2 is aside view partly in section.

Fig. 3 is a horizontal sectional view taken on the line ww of Fi 2.

Fig. 4 is a bottom p an' view; and Fig. 5 is a sectional view taken on the line y.y of Fig. 1, looking toward the left. -In the drawings, 1 is the fuel supply tank, from which fuel passes through the channel 2 to the fuel distributors 3, which may be of capillary size, arranged in the intake conduit 4. This conduit may be polygonal and is preferably rectangular in cross section,

at least'behind thepoint of fuel discharge.

These distributers are provided with slots or discharge opening 5, extending in an up and down dire :tion transversely to the in:

part of each of the distributors 3, four of which are shoi 711, is a plug or cylinder 6, (though a cap night be used) which-serves to close the up per part of the-distributer, and thus to'clo: e the openings or slots, in its corresponding distributor, in whole or in part, according to its vertical position. These plugs 6 :re all shown of equal length and are mountel in a carrying or head piece 7, the vertical )osition of which, of course, determines the 'ertical position of the plugs, and consequently the extent to which the slots are open. Into this head 7 is screwed a screw 8, the lower end of which may, as shown in F g. 5, act as a stop to limit the downward movement of the head, and the upper end of which projects above the head sufficiently far to be engaged by the forked end 8 of a plate 9 hingedat 10to the top of the i1 ltake conduit. I mount upon the top of said conduit 11, a screw with milled nut 12, a id said screw passes through an opening in plate 9. Between the milled nut and the p12 to 9, and around the screw,

I place the co: npression spring 13, which tends to press lown the hinged plate, and consequently th: head 7 ,until the lower end of screw .8 rest: upon the top of the intake conduit.

Pivoted to brackets on the head 7 is a forked lever 1w, fulcrumed at 15 upon a. standard or su port 16 attached to the top of the intake cinduit. At 17 in the other or power end of the lever, is a series of holes, in any one of which is a pin, upon which pin is pivoted a link 18 passing through a slot in the top of ti e conduit, the lower end of the link is provided with a screw 21 which is mounted to b :ar upon the pivot pin at 17.. By unscrewing said pin slightly, a certain extent of play between the link and the lever may be efi'e-ated. so that response of the lever and consequently of the head 7, to the deflector plate novement, need not be immediate. In the outer end of the lever, I provide an adjt stable'stop 22.

loo

The deflector plate is pivotally hinged in y the intake prefe rably on the bottom thereof, x

the intake COIldl it here being of rectangular shape, and ext nds diagonally; upward as shown. At its upper end it may be pro vided if desired with a vertical portion 22, terminating in a piece 23 adapted to contact with the inside top of the conduit. The upper portion 22 may be skeletonized or may be provided withopenings, as shown in Fig. 2, so that there may always be an opportunity for some quantity of air to ass through said plate no matter'what ad]ustment of the parts described is made, and no matter how light the pull of the. engine. The nut 12 may be screwed down sofar, for instance, that the spring 13 will, through lever 14 and link 18, prevent the deflector plate 20 from yielding to any engine suction at the same time some small quantity of air may pass the fuel discharge openings. These openmgs may then be almost closed, owing to the position of the closing plugs determined bythe position of screw 81 If, however, the spring 13 be properly adjusted the deflector plate will be'deflected under engine suction, and the openings of the fuel distributers will respond directly to such deflection and hence respond directly to engine suction.

In some proper place, referably the bottom of the conduit un er the intake deflector plate, an auxiliary valve 23', hinged at 24, and controlled by a 5 ring 25, adjustable at 26 by milled nut 2 This valve may be adjusted to yield under predetermined engine suction, and through it-may pass diluting air in quantity additional to that passing by the deflector plate, in proportion to fuel and engine need. In the form shown, the entrance part of my intake conduit is rectangular in cross section, and for this part the rectangular shape is preferred. Farther on Imay change the shape in cross section to some other, in this instance a circular shape. In this part I have arranged in the present embodiment of my device, a throttle valve 28, to the shaftof which is attached operating lever 29. I may also provide another arm or lever 30 on the shaft, and in this I have mounted an adjusting screw 31 which is adapted, when the throttle is thrown closed to contact with the flange 32, on the intake conduit bymea-ns. of which flange my fuel distributer may be bolted or otherwise secured to an engine. This arrangement prevents entire closure of the throttle so that the motor may be kept running idle, on a low speed.

The sign 33 indicates a fuel filter. It will be seen that I have provided in the structure shown and described above, a simple and eflicient means of controlling the area of the fuel discharge openings in direct res pnse to the suction of the engine, and have a so provided means whereby the parts ma be accurately adjusted to the needs of any particular engine and to the wear of such engine, the area of the openings being always maintamed 1n dlrect response to engine suction.

plate and said fuel discharge openings,

whereby the area of said openings may be made to vary in direct proportion to the deflections of said plate.

2. A means for supplying fuel for an internal combustion engine, in direct proportion to engine suction, which consists of an intake conduit, a deflectorplate hinged. to the bottom thereof and extending obliquely forward, devices having fuel discharge openings, arranged in said conduit, in front of salddeflector plate, means for changing the areas in one direction of said openings, and means connecting said devices with said deflector plate,

3. A means for supplying fuel for an internal combustion engine, in direct proportion to engine suction, which consists ofan intake conduit rectangular in cross section, a deflector plate hinged to the bottom of said conduit and of a width corresponding to the width of the conduit and extending obliquely forward, devices having fuel discharge openings, arranged in said conduit;- in front of said deflector plate, means for changing the areas of said openings, and

means connecting said devices with said deflector plate. I

4. A means for supplying fuel for an internal combustion engine, in direct proportlon to engine suction, which consists of an intake conduit, a deflector plate hin ed to the bottom thereof and extending obliquely forward, devices having fuel discharge openings, arranged in said conduit, in front of said deflector plate, means for changing the areas of said openings, and means connecting said devices with said deflector plate, said conduit being providedwith an 'auxiliary valve at its bottom for admitting diluting air.

5. A means for supplying fuel for an internal combustion engine, which consists of a fuel tank, fuel distributers connected therewith, said distributers being provided with slots, an intake conduit, said distributers being arranged in said conduit, plugs a'rra aged one in each of said distributers and adapted'to be movedupand down therein to vary'the area of opening of said slots a head, a deflectorplate in said conduit, and

- means connecting said head and said deflector plate whereby when the deflector plate is moved in response to engine suction,

' the head and the connected plugs are moved internal combustion engine, in direct proportion to engine suction, which consists of an intake conduit, fuel discharge openings in said conduit, a deflector plate arranged to deflect air past'said openings, means for controlling the area of said openings, a head on which said means are mounted, a lever to which said head is connected, a spring for holding said head depressed, a pivot for said lever, and a link connected to said lever the other side of said pivot, said link supporting the deflector plate, the arrangeit ment being such that in response to engine suction the deflector plate is depressed to admit more air, and the areas of the discharge openings enlarged in direct proportion to such depression so that the supply of fuel is increased as the supply of air is in creased.

8. A means for supplying fuel for an internal combustion engine, in direct propor tion to engine suction, which consists in combination, of an intake conduit, a deflector plate hinged to the bottom thereof, fuel distributers discharging into said conduit near the upper end of said deflector plate, means for controlling the fuel discharge area, a head to which said means are connected, a pivoted plate having its free end resting 'upon said head, a screw passing through said plate, a milled nut for said screw, a spring between said nut and said plate whereby more or less pressure may be exerted upon said plate and hence upon the head, and a lever connection between said head and said deflector plate, whereby the head moves to permit the area of the openings to be enlarged in direct response to movement of the deflector plate, in opposition to said spring, and whereby the spring may be adjusted to cause said deflector plate to respond to engine suction at any desired pressure. p

9. In combination, a conduit for an internal combustion engine, a deflecting plate pivoted on the bott( m of said conduit to extend obliquely forw: rd, openings in the forward part of said pl: te, pipes of capillary dimensions, openings in said pipes in front of said plate oper ings, means for varying the dimensions of maid pipe openings, and con- 'nections between said dimension varying means and said plate, whereby deflection of the plate wiIl vary the dimensions of the,

pipe openings.

10. In combination, a conduit having several sides, f( r an internal combustion engine, a deflecting plate pivoted to one of said sides, and arranged to extend obliquely forward, an op :ning in the forward part of said plate, fuel supply means, an opening in said fuel supply means in front of said plate opening, means for varying the area of discharge of said fuel supply opening, and a connecti: 1g means between said area varying means ,nd said plate, whereby movement of the plate will vary the area of said fuel supply me LIlS- 11. In a fueI supply device for internal combustion engines, in combination, an intake conduit ha ving several sides, an air deflecting plate 11 ounted on one of said sides, and extending :Forward to close the conduit, the forward en d being free to yield under the pressure of incoming air, a device having an opening for fuel discharge, arranged in front of said deflecting plate, a device for changing if one dimension, the area of said discharge opening, and means connecting said area changing device and said deflector plate, wl .ereby as said plate yields to incoming air, tie area of said opening increases.

12. A means for supplying fuel to an internal combusti )n engine, in direct proportion to engine s iction, which means consists of an intake C01 .duit, a deflector plate yieldingly mounted z t one end upon said conduit, and extending obliquely forward, a fuel supplying mean s discharging into said condu1t and provid ed with a discharge opening opposite the for ward end of said plate, a de- "liquely forward toward said fuel opening with its forward end near the fuel discharge opening, and having its forward end bent.

14. In a fuel supply device for internal combustion eng nes, in combination, a fuel tank, a pipe having a fuel discharge opening arranged to discharge into said conduit, a device for. controlling the area of said opening, a deflector plate in said conduit in front of said opening, arranged to yield to air pressure, to deflect air toward and past said opening in response to engine suction,

a device to vary the area of fuel discharge,

and means connecting said device and said 

